＜參考＞結婚屆・離婚屆が脫ハンコ https://www.fnn.jp/articles/-/93530 KDDI https://japan.cnet.com/article/35160735/消費支出－6.9% https://www.nikkei.com/article/DGXMZO64812710Z01C20A0EAF000/ANAの副業拡大 https://news.yahoo.co.jp/articles/7711b5ec5ff1c5918e22486d8cfdc76e8163c77aみずほ　週休３～４日制 https://www.jiji.com/jc/article?k=2020100601250&g=eco